One of the waterways in that area of the country affected by the rain is the Red River, which begins in Texas. It also touches Arkansas, Oklahoma and flows into Louisiana. As of Wednesday, it was cresting at 37.05 feet in Shreveport, Louisiana, well above flood stage.
Fipronil is a broad-use insecticide that belongs to the phenylpyrazole chemical family. Fipronil is a broad-spectrum insecticide that disrupts the insect central nervous system by blocking GABA-gated chloride channels and glutamate-gated chloride (GluCl) channels, resulting in central nervous system toxicity.ipronil is a slow acting poison. When used as bait, it allows the poisoned insect time to return to the colony or harborage. In cockroaches, the feces and carcass can contain sufficient residual pesticide to kill others in the same nesting site.
Fipronil reacts with water to break down into smaller chemicals at a speed that increases as the water becomes less acidic. When fipronil in the water is exposed to sunlight it breaks down rapidly with a half-life of 4-12 hours. Fipronil and its breakdown products can build up in water under normal conditions.There is no evidence that fipronil or its breakdown products evaporate from soil or water into the air. Fipronil is not well absorbed by plants when it is applied to soil. If fipronil does get into plants, it can partially break down.ipronil is used to control ants, beetles, cockroaches, fleas, ticks, termites, mole crickets, thrips, rootworms, weevils, and other insects. Fipronil is a white powder with a moldy odor.